class="kw">package com.hypixel.hytale.protocol;

class="kw">import com.hypixel.hytale.protocol.io.PacketIO;
class="kw">import com.hypixel.hytale.protocol.io.ProtocolException;
class="kw">import com.hypixel.hytale.protocol.io.ReadCursor;
class="kw">import com.hypixel.hytale.protocol.io.VarInt;
class="kw">import java.lang.foreign.MemorySegment;
class="kw">import java.util.Arrays;
class="kw">import java.util.Objects;
class="kw">import javax.annotation.Nonnull;
class="kw">import javax.annotation.Nullable;

class="kw">public class BlockFaceSupport {
   class="kw">public class="kw">static class="kw">final int NULLABLE_BIT_FIELD_SIZE = 1;
   class="kw">public class="kw">static class="kw">final int FIXED_BLOCK_SIZE = 1;
   class="kw">public class="kw">static class="kw">final int VARIABLE_FIELD_COUNT = 2;
   class="kw">public class="kw">static class="kw">final int VARIABLE_BLOCK_START = 9;
   class="kw">public class="kw">static class="kw">final int MAX_SIZE = 65536019;
   @Nullable
   class="kw">public String faceType;
   @Nullable
   class="kw">public Vector3i[] filler;

   class="kw">public BlockFaceSupport() {
   }

   class="kw">public BlockFaceSupport(@Nullable String var1, @Nullable Vector3i[] var2) {
      this.faceType = var1;
      this.filler = var2;
   }

   class="kw">public BlockFaceSupport(@Nonnull BlockFaceSupport var1) {
      this.faceType = var1.faceType;
      this.filler = var1.filler;
   }

   class="kw">public class="kw">static void requireBounds(MemorySegment var0, int var1) {
      if (var1 < 0) {
         throw ProtocolException.invalidOffset("BlockFaceSupport", var1, (int)var0.byteSize());
      }

      long var2 = var1 + 9L;
      if (var2 > var0.byteSize()) {
         throw ProtocolException.bufferTooSmall("BlockFaceSupport", (int)Math.min(var2, 2147483647L), (int)var0.byteSize());
      }
   }

   @Nullable
   class="kw">public class="kw">static String getFaceType(MemorySegment var0) {
      class="kw">return getFaceType(var0, 0);
   }

   @Nullable
   class="kw">public class="kw">static String getFaceType(MemorySegment var0, int var1) {
      class="kw">return hasFaceType(var0, var1) ? PacketIO.readVarString("FaceType", var0, var1 + getValidatedOffset(var0, var1, 1, 9, "FaceType"), 4096000) : null;
   }

   @Nullable
   class="kw">public class="kw">static Vector3i[] getFiller(MemorySegment var0) {
      class="kw">return getFiller(var0, 0);
   }

   @Nullable
   class="kw">public class="kw">static Vector3i[] getFiller(MemorySegment var0, int var1) {
      if (!hasFiller(var0, var1)) {
         class="kw">return null;
      }

      int var2 = var1 + getValidatedOffset(var0, var1, 5, 9, "Filler");
      long var3 = VarInt.getWithLength(var0, var2);
      if (var3 == -1L) {
         throw ProtocolException.invalidVarInt("Filler");
      }

      int var5 = (int)var3;
      if (var5 > 4096000) {
         throw ProtocolException.arrayTooLong("Filler", var5, 4096000);
      }

      int var6 = (int)(var3 >>> 32);
      if (var2 + var6 + var5 * 12L > var0.byteSize()) {
         throw ProtocolException.bufferTooSmall("Filler", (int)Math.min(var2 + var6 + var5 * 12L, 2147483647L), (int)var0.byteSize());
      }

      var2 += var6;
      Vector3i[] var7 = new Vector3i[var5];

      for (int var8 = 0; var8 < var5; var8++) {
         var7[var8] = Vector3i.toObject(var0, var2 + var8 * 12);
      }

      class="kw">return var7;
   }

   class="kw">public class="kw">static boolean hasFaceType(MemorySegment var0, int var1) {
      byte var2 = var0.get(PacketIO.PROTO_BYTE, var1 + 0);
      class="kw">return (var2 & 1) != 0;
   }

   class="kw">public class="kw">static boolean hasFiller(MemorySegment var0, int var1) {
      byte var2 = var0.get(PacketIO.PROTO_BYTE, var1 + 0);
      class="kw">return (var2 & 2) != 0;
   }

   class="kw">private class="kw">static int getValidatedOffset(MemorySegment var0, int var1, int var2, int var3, String var4) {
      int var5 = var0.get(PacketIO.PROTO_INT, var1 + var2);
      if (var5 >= 0 && var5 <= var0.byteSize() - var1 - var3) {
         class="kw">return var3 + var5;
      } else {
         throw ProtocolException.invalidOffset(var4, var5, (int)var0.byteSize());
      }
   }

   class="kw">private class="kw">static void requireSlot(MemorySegment var0, int var1, int var2, String var3) {
      int var4 = var0.get(PacketIO.PROTO_INT, var1);
      if (var4 != var2) {
         throw ProtocolException.nonCanonicalLayout(var3, var4, var2);
      }
   }

   class="kw">public class="kw">static BlockFaceSupport toObject(MemorySegment var0) {
      class="kw">return toObject(var0, 0, null);
   }

   class="kw">public class="kw">static BlockFaceSupport toObject(MemorySegment var0, int var1) {
      class="kw">return toObject(var0, var1, null);
   }

   class="kw">public class="kw">static BlockFaceSupport toObject(MemorySegment var0, int var1, @Nullable ReadCursor var2) {
      requireBounds(var0, var1);
      int var3 = var1 + 9;
      int var4 = 0;
      String var5 = null;
      if (hasFaceType(var0, var1)) {
         requireSlot(var0, var1 + 1, var4, "FaceType");
         int var6 = var3 + var4;
         long var7 = VarInt.getWithLength(var0, var6);
         var5 = PacketIO.readVarString("FaceType", var0, var6, 0, 4096000, var7);
         var4 += (int)var7 + (int)(var7 >>> 32);
      } else {
         requireSlot(var0, var1 + 1, -1, "FaceType");
      }

      Vector3i[] var13 = null;
      if (hasFiller(var0, var1)) {
         requireSlot(var0, var1 + 5, var4, "Filler");
         int var14 = var3 + var4;
         long var8 = VarInt.getWithLength(var0, var14);
         if (var8 == -1L) {
            throw ProtocolException.invalidVarInt("Filler");
         }

         int var10 = (int)var8;
         if (var10 > 4096000) {
            throw ProtocolException.arrayTooLong("Filler", var10, 4096000);
         }

         int var11 = (int)(var8 >>> 32);
         if (var14 + var11 + var10 * 12L > var0.byteSize()) {
            throw ProtocolException.bufferTooSmall("Filler", (int)Math.min(var14 + var11 + var10 * 12L, 2147483647L), (int)var0.byteSize());
         }

         var14 += var11;
         var13 = new Vector3i[var10];

         for (int var12 = 0; var12 < var10; var12++) {
            var13[var12] = Vector3i.toObject(var0, var14 + var12 * 12);
         }

         var4 = var14 + var10 * 12 - var3;
      } else {
         requireSlot(var0, var1 + 5, -1, "Filler");
      }

      BlockFaceSupport var16 = new BlockFaceSupport(var5, var13);
      if (var2 != null) {
         var2.position = var3 + var4;
      }

      class="kw">return var16;
   }

   class="kw">public int serialize(@Nonnull MemorySegment var1, int var2) {
      byte var3 = 0;
      if (this.faceType != null) {
         var3 = (byte)(var3 | 1);
      }

      if (this.filler != null) {
         var3 = (byte)(var3 | 2);
      }

      var1.set(PacketIO.PROTO_BYTE, var2 + 0, var3);
      int var4 = var2 + 9;
      if (this.faceType != null) {
         var1.set(PacketIO.PROTO_INT, var2 + 1, var4 - var2 - 9);
         var4 += PacketIO.writeVarString(var1, var4, this.faceType, 4096000);
      } else {
         var1.set(PacketIO.PROTO_INT, var2 + 1, -1);
      }

      if (this.filler != null) {
         var1.set(PacketIO.PROTO_INT, var2 + 5, var4 - var2 - 9);
         if (this.filler.length > 4096000) {
            throw ProtocolException.arrayTooLong("Filler", this.filler.length, 4096000);
         }

         var4 += VarInt.set(var1, var4, this.filler.length);
         int var5 = 0;

         for (int var6 = 0; var6 < this.filler.length; var6++) {
            var5 += this.filler[var6].serialize(var1, var4 + var5);
         }

         var4 += var5;
      } else {
         var1.set(PacketIO.PROTO_INT, var2 + 5, -1);
      }

      class="kw">return var4 - var2;
   }

   class="kw">public int computeSize() {
      int var1 = 9;
      if (this.faceType != null) {
         var1 += PacketIO.stringSize(this.faceType);
      }

      if (this.filler != null) {
         var1 += VarInt.size(this.filler.length) + this.filler.length * 12;
      }

      class="kw">return var1;
   }

   class="kw">public BlockFaceSupport clone() {
      BlockFaceSupport var1 = new BlockFaceSupport();
      var1.faceType = this.faceType;
      var1.filler = this.filler != null ? Arrays.stream(this.filler).map(var0 -> var0.clone()).toArray(Vector3i[]::new) : null;
      class="kw">return var1;
   }

   @Override
   class="kw">public boolean equals(Object var1) {
      if (this == var1) {
         class="kw">return true;
      } else {
         class="kw">return !(var1 class="kw">instanceof BlockFaceSupport var2) ? false : Objects.equals(this.faceType, var2.faceType) && Arrays.equals(this.filler, var2.filler);
      }
   }

   @Override
   class="kw">public int hashCode() {
      int var1 = 1;
      var1 = 31 * var1 + Objects.hashCode(this.faceType);
      class="kw">return 31 * var1 + Arrays.hashCode(this.filler);
   }
}